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Defect Passivation for Production-Quality and High-Bandgap CIGS and CIAS Solar…

Award Information

Department of Defense
Air Force
Award ID:
Program Year/Program:
2004 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Itn Energy Systems, Inc.
8130 Shaffer Parkway Littleton, CO 80127-4107
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2004
Title: Defect Passivation for Production-Quality and High-Bandgap CIGS and CIAS Solar Cells
Agency / Branch: DOD / USAF
Contract: FA9453-04-M-0106
Award Amount: $99,993.00


A major factor that detracts from the many advantages offered by thin-film flexible CIGS PV for non-terrestrial applications is that it currently provides substantially lower solar conversion efficiencies than crystalline PV technology. While CIGS device efficiencies exceeding 19% have been produced in the laboratory, efficiencies of devices produced in large-scale production have been substantially lower. Recent work has identified the presence of electronic atomic-level defects in the CIGS material as a primary factor responsible for the gap between laboratory and production efficiencies. Also, the drop-off in efficiencies with increasing bandgap has been attributed to a higher density of defects serving as recombination centers or a higher sensitivity to such defects. Such defects must be eliminated or passivated to achieve the potential of CIGS technology. While all manufactures of CIGS have put considerable effort into minimizing formation of defects through optimizing process parameters, another approach to controlling defects is to "passivate" them by adding constituents that eliminate their electronic activity or alter it in a way that reduces the detrimental effect. ITN Energy Systems, Inc. proposes to conduct a thorough study of defects and potential defect passivation methods in production-quality CIGS and high-bandgap CIGS and CIAS (copper-indium-aluminum-diselenide).

Principal Investigator:

Garth Jensen
Senior Scientist

Business Contact:

Lee Petersen
Director, Business Development
Small Business Information at Submission:

8130 Shaffer Pkwy Littleton, CO 80127

EIN/Tax ID: 841582609
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No